PhySci Ch16 5ED Question Preview (ID: 44652)


PhySci Ch16 5ED. TEACHERS: click here for quick copy question ID numbers.

a positively charged particle in the nucleus of an atom; 1836 times heavier than an electron
a) proton
b) neutron
c) electron
d) atomic number

a neutral particle in the nucleus of an atom, with approximately the same mass as a proton
a) neutron
b) proton
c) electron
d) isotope

the sum of the protons and neutrons in the nucleus of an atom; also known as atomic mass
a) mass number
b) atomic mass
c) nuclear fusion
d) electron

a form of an element that has a different number of neutrons
a) isotope
b) atomic mass
c) atomic number
d) electron

the joining together of smaller nuclei into a larger one
a) nuclear fusion
b) nuclear fission
c) proton
d) electron

the splitting of a nucleus
a) nuclear fission
b) nuclear fusion
c) protons
d) electrons

a negatively charged particle with an extremely small mass
a) electron
b) mass number
c) neutron
d) isotope

the number of protons in the nucleus of an atom
a) atomic number
b) electron
c) atomic mass unit
d) proton

a unit used to measure the mass of an atom; 1/12 the mass of a carbon-12 atom
a) atomic mass unit
b) atomic mass
c) electron
d) atomic number

the total of the masses of the particles in an atom
a) atomic mass
b) electron
c) nuclear fusion
d) proton

the emission of rays and particles from an unstable nucleus
a) radioactivity
b) nuclear fission
c) nuclear fusion
d) atomic number

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